SN74AVC4T245: How to handle the input pin after the OE pin is pulled high

jeno.zhang

Part Number: SN74AVC4T245

Hello，

How to handle the input pin after the OE pin is pulled high （disable）？ Whether the input pin needs to be pulled up or down？

Thanks！

0 Clemens Ladisch over 2 years ago

Guru 316760 points

Whether the pin is high or low does not matter. But it needs to have a valid voltage; see [FAQ] How does a slow or floating input affect a CMOS device?

0 jeno.zhang over 2 years ago in reply to Clemens Ladisch

Expert 2875 points

If I use the OE pin to close a specific channel, can the specific channel input pin be suspended？

0 jeno.zhang over 2 years ago in reply to jeno.zhang

Expert 2875 points

If I use the OE pin to close a channel, can the channel input pin be suspended

0 Clemens Ladisch over 2 years ago in reply to jeno.zhang

Guru 316760 points

The /OE pin disables only the ouputs. The input buffers stays active and need a valid voltage.

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